Hi,
I'm using the STERLING-LWB module evaluation board with an STM32F411E-DISCO board and the latest WICED SDK (v6.0.1) for testing power consumption.
I'm trying to go into sleep mode with wiced_deinit(), but getting a value of 168uA, while datasheet should be 80uA.
Where am I wrong?
Thanks,
AG
To clarify, are you measuring the current of just the Sterling-LWB module or the whole system?
I recommend looking at the state of all the IO interfacing to the module. There may be a couple IO in the wrong state that are causing the extra current drain.
We are going to set this up and test internally. Our apologies as the question from 2/16 should have been have you measured each IO on the module and confirmed that the state is high or low and if this is the correct state? As mentioned, we're going to try to recreate this internally, please provide all IO pin states so that we can match your setup as closely as possible. Please include any other information that would affect our test/test setup.
Our most common finding for this issue is that one or more pins are in an incorrect state.
Can you confirm the state of each pin? Do you have them pulled high, pulled low, or left floating (doing nothing with them). Once we know the state of each pin we can replicate your device setup in our lab. Once we have this in our lab we can check the current draw to see if it matches your findings. Then we can proceed with investigating a resolution for the issue.
Hi mcalhoun,
this is my situation after I call wiced_init() and then wiced_deinit() only:
LOW = 0V
I left the default initializations of the pins made by LAIRD.
Thanks.
Hello - SDIO_D2 looks suspicious with 2.87V. Is this connected to anything except the DVK? Is there code involved in WICED to initialize the DVK, if so, can you share this?
